| Dacrydiinae Ockelmann, 1983 |
| Dacrydium Torell, 1859 |
| Dacrydium (Dacrydium) Torell, 1859 |
| Dacrydium (Dacrydium) pacificum Dall, 1916 |
| Dacrydium (Dacrydium) panamensis Knudsen, 1970 |
| Dacrydium (Quendreda) Iredale, 1936 |
| Dacrydium (Quendreda) elegantulum Soot-Ryen, 1955 |
| Dacrydium elegantulum Soot-Ryen, 1955 |
| Dacrydium elegantulum subsp. hendersoni Salas & Gofas, 1997 |
| Dacrydium hendersoni Salas & Gofas, 1997 |
| Dacrydium pacificum Dall, 1916 |
| Dacrydium panamensis Knudsen, 1970 |
| Geukensia Van de Poel, 1959 |
| Geukensia demissa (Dillwyn, 1817) |
| Geukensia granosissima (G. B. Sowerby III, 1914) |
| Gregariella Monterosato, 1883 |
| Gregariella coarctata (P. P. Carpenter, 1857) |
| Gregariella coralliophaga (Gmelin, 1791) |
| Gregariella denticulata (Dall, 1871) |
| Gregariella opifex (Say, 1825) |